Biology !! Please help

A muscle with the opposite action of the prime mover is called an Antagonist.

An antagonist is a muscle that acts in opposition to the primary mover or agonist. Maintaining body or limb position, such as holding the arm out or standing tall, and controlling rapid movement, such as in shadow boxing without landing a punch or the capacity to halt the motion of a limb, are two crucial functions antagonists play in muscular function.

These muscles are in charge of putting bones back in their proper alignment, antagonist muscles control and slow down movement opposite to their agonist partner, while in other situations a muscle can be an antagonist throughout a particular movement.

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An attribute of COVID-19 is excessive inflammation, which is controlled by regulatory T cells (Tregs)

An attribute of COVID-19 is excessive inflammation, which is controlled by regulatory T cells (Tregs). In addition to an intriguing role for interleukin (IL)-6 and IL-18, we discovered a noteworthy profile in Tregs from patients with advanced disease. Severe patients were distinguished from healthy people by the production of proinflammatory mediators and an improved suppressive profile that comprised increased Treg proportions. This suggests that these cells had a negative impact on COVID-19 and that there might be a cause for some of the recovery-related issues that are still mostly unexplored. The prognosis of tumor-infiltrating Tregs, which frequently exhibit this tendency, is generally poor.

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Answer: A, D, D

Explanation:

Answer:ok

Explanation:ok

The thing that all biogeochemical cycles have in common are that c. they are all essential for sustaining life on earth.

In the field of ecology, a biogeochemical cycle can be described as a process by which an essential substance or element is transferred among the biotic and abiotic components of the ecosystem.

The material revolves around the earth as well as the atmosphere and is recycled. The biogeochemical cycles such as the carbon cycle, and nitrogen cycle. water cycles etc are all essential for the sustenance of life on Earth.

Without the biogeochemical cycles, resources will not be recycled in the environment and there will be a depletion of resources.

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Answer: Enables the spermatozoa to penetrate the ova

Explanation: It contains certain digestive enzymes (hydrolytic enzymes) that helps the sperm to tunnel through the zona pellucida of the ova. It mediates the union and binding of the membrane with the egg.

The functions of each of the below polysaccharides are: -

Cellulose- Cellulose, a hard, fibrous, & water-insoluble polysaccharide, is crucial in maintaining the structure and stability of plant cell walls. The plant cell walls are made up of microfibrils, which are collections of cellulose chains, or fibrils, which are collections of microfibrils and polysaccharides.

Starch- Starch is a kind of carbohydrate that is present in all plants, including grains, fruits, and vegetables. A healthy diet must include starchy foods since they provide you energy, fiber, as well as a feeling of fullness. Starch molecules are broken down by the body into glucose, which serves as the body's main fuel source.

Glycogen- When it comes to maintaining our muscles well-fueled for exercise, glycogen is crucial. Our muscles will use their glycogen reserves while we workout. Our blood glucose and liver-stored glycogen can both be used to power our muscles.

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If replication had to be accomplished in an 8-hour s phase and replication forks moved at 50 nucleotides/second, The minimum number of 46 origins required to replicate the human genome.

A double-stranded DNA molecule is copied during replication to create two identical DNA molecules. One of the most fundamental processes that take place within a cell is DNA replication. Between the G1 phase and the G2 phase, the cell cycle's S phase (also known as the "synthesis phase") is when DNA replication occurs. Since precise genome duplication is essential for effective cell division, the S-phase mechanisms are strictly regulated and highly conserved.

Before the interphase, in the S phase of the cell cycle, DNA synthesis or replication takes place. By doing this, the cell's genetic material is copied before mitosis or meiosis, leaving enough DNA for cell division.

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Answer:

first page is good  2 page might want to look over again or have a parent help you

Explanation:

Answer:

no

Explanation:

Capillary action cohesion, Amazing water adhesion, bubbling beakers specific heat capacity, Magic pepper polarity , and pouring water  demo capillary action.

Like molecules (of the same substance) have the ability to adhere to one another due to attraction to one another, which is known as cohesion. Adhesion is the ability of certain molecules or surfaces to stick to one another. Solids, for instance, have high cohesive qualities, which prevent them from adhering to surfaces with which they come into touch. Gases, however, have a poor cohesiveness. Water is cohesive and sticky in nature. A sphere is created when water molecules adhere to one another. Cohesive forces have produced this. Water molecules reaching the container's surface are at a greater level when enclosed in a tube (see Meniscus). This is a result of the adhesive force between the molecules of water and those of the container.

Magic pepper is an experiment in which pepper polarizes easily , the electrons move to one end of the pepper gain and protons move to the other end . Capillary action is the movement of water within the spaces of a porous material due to the forces of adhesion , cohesion and surface tension.

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The reason why estrogen can be used as a contraceptive drug is that it is one that act to prevent ovulation.

For the majority of people, there are hormonal contraception that is a safe as well as effective technique to prevent pregnancy since they either made up of progestin solely or estrogen as well as progestin.

There is the use of an implant, an intrauterine device (IUD), etc are examples of hormonal approaches.

Therefore, In order to prevent ovulation, estrogen as well as progestin combinations are  said to be effective.

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Most enzymes in the human body work better at physiological pH, because too low or too high pH concentration may alter the tridimensional conformation of these proteins.

Enzymes generally best work in physiological conditions (except hydrolytic lysosomal enzymes) because they establish chemical bonds to normal pH conditions (pH: 7), thereby modifications in pH may alter enzyme domains required to bind their corresponding substrates.

Therefore, we can conclude that most of the human enzymes when dissolved to a pH of 3 cannot work because it is a very acidic medium where the chemical bonds of the enzyme are altered, thereby modifying this 3D macromolecular structure.

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C. the heavy metals have a synergistic relationship when combined

can scientists infer about the possible reason for the illnesses in the town.

As a result, high metal exposure may be hazardous. The kidney is the first organ to be affected by heavy metal poisoning due to its tendency to reabsorb and accumulate divalent metals. The degree of kidney damage caused by heavy metals is determined by the type, dosage, route, and duration of exposure.

Toxic metals, especially "heavy metals," are metals and metal compounds that are harmful to people's health. This article discusses certain poisonous semi-metallic elements, such as arsenic and selenium. Many of these metals are required in trace amounts to sustain life.

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The number of cells of Staphylococcus aureus present into the open wound, which divides by binary fission once every 30 minutes, after 30 minutes, one hour and 12 hours will be 2, 4 and 1.7 × 10⁷ cells respectively.

Binary fission is the method of asexual reproduction. It is the process by which a cell divides to form two daughter cells.

According to the question, the cell divides into 2 once after every 30 minutes.

The number of cells can be calculated by the formula: 2ⁿ

(where n = number of times the cell will divide in the given time period)

Therefore after 30 minutes, number of cells = 2¹ = 2.

Similarly, after 60 minutes, number of cells = 2² = 4.

In 12 hours, the cell will divide 24 times,

Hence the number of cells will be = 2²⁴ = 1.7 × 10⁷ cells respectively.

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Answer:

technology

Explanation:

that was the answer choices so im not sure if its true of false all i know its technology

not sure if it will help but have a nice day

Answer:

Symbiotic bacteria

Explanation:

Symbiotic bacteria live in the mussels' gills. Like the microbes living inside tubeworms, these bacteria use energy from chemicals in the vent fluids to produce sugars.

Answer:

Sexual reproduction requires two parents. Each parent contributes a gamete - a sex cell that has half of the normal DNA of a regular body cell. In males, the gametes are sperm and in females, the gametes are eggs.

When these two gamete combine during fertilization, the result is a zygote, which then continues to develop into an embryo.

hope it helps you

Answer: I'm pretty sure it's sugars.

Explanation:

I think they use it as their food.

Answer:

After prophase is complete, the cell enters prometaphase.

During prometaphase, the nuclear membrane disintegrates and the mitotic spindle gains access to the chromosomes. During this phase, a protein structure called the kinetochore is associated with the centromere on each sister chromatid.

Answer: well after the prophase is complete the cell will enter the prometaphase where the nuclear membrane disintegrates and the mitotic spindle gains access to the chromosomes.

Explanation:

Answer:

The sun's heat causes differential heating of the earth's surface and water bodies causing changing wind patterns.

Explanation:

The amount of sunlight received varies on various factors like

1. Insolation

2. Latitude

3. Altitude

Maximum sunlight is received at the equator while minimum sunlight is received at the poles.

Because of varying amounts of sunlight received, the surface and water bodies heat differently. This causes the wind over the surface to warm and cool differently.

The warm air being lighter in weight rises and is replaced by the heavier colder air. This leads to the formation of wind patterns.

The global winds are called trade winds.

An enzyme may get denatured and cease to function at extremely high temperatures. There is an ideal pH range for each enzyme. Beyond this range, pH variations will restrict enzyme activity.

The vital function of enzymes is to reduce its activation energy of a reaction, or the amount of power needed for the reaction to start. In order to facilitate the chemical bond-forming and friendship processes, enzyme bind to reactant molecules and keep them in place.

Helicase, primase, Enzyme dna, and ligase are the four primary enzymes that aid in Replication of dna.

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Locations like Antarctica would be least likely to experience an earthquake because they have less or no faulty lines.

Earthquakes are the tremors that occur inside the surface of the earth due to the slipping of tectonic plates against each other. The frequency of earthquake depends upon various factors like distance from the epicenter, the intensity of slippage of tectonic plates, etc.

Faulty lines are the fractures that are present between two rocks inside the Earth's surface. Since plain region do not have rocks that is the reason why faulty lines cannot be found there and hence earthquakes are also less, as their rapid movement causes earthquake.

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As it appears to be in charge of many of the processes that support creative thinking, the frontal cortex has been referred to as the hub or center of creativity.

Millions of nerve cells in your brain are arranged in patterns that help you think, feel, behave, move, and sense things. Your brain and the rest of your body are linked by a vast system interconnected nerves that allow for rapid communication.

The cerebrum, cerebellum, and brainstem are the three primary parts of the brain. The brain's largest structure, the cerebellum, is composed of the right and left hemispheres. Higher cognitive tasks include understanding touch, vision, listening, speech, logic, emotion, learning, and fine motor control, among others.

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Answer:Evaporation happens when a liquid substance becomes a gas

Explanation:

Answer:

Monocots have flower parts in threes or multiples of threes as shown in the flowers to the left. Dicots have flower parts in multiples of fours or fives like the five-petaled dicot flower

Explanation:

Answer:

by the arrangement of the xylem and phloem.

Explanation:

In a dicot, the xylem and phloem form an X or Y shape compared to the monocot are arranged in a ring formation.
Gives rise to cork cambium, parts of the vascular cambium, and lateral roots Gives rise to lateral roots only

Vascular Tissues

Has a limited number of Xylem and Phloem Has a higher number of Xylem and Phloem

Shape of Xylem

When we begin to heat the pot and the water, the water particles should slide past each other faster, and the iron particles should vibrate faster. Option C

The term temperature refers to the degree of the hotness or the coldness of an object. Much more, the temperature of an object has to do with the measure of the average kinetic energy of the molecules of the body..

Thus, when we begin to heat the water and the iron pot, we know that the kinetic energy of the molecules of the water and the both would increase. This is due to the acquisition of energy in the form of the heat applied.

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Answer:

The process of mitosis generates new cells that are genetically identical to each other. Mitosis helps organisms grow in size and repair damaged tissue. Some species of algae are capable of growing very quickly.

Explanation:

I hope this will be helpful for you.

For measuring the volume of a liquid then a student should use a measuring cylinder, pipette, and measuring flask.

If a student wants to measure the volume of a liquid then he should use the following things.

1. Measuring cylinder.

2. Pipette.

3. Measuring flask.

Above are the things used for measuring a liquid's volume. A measuring cylinder is an apparatus used in the laboratory for measuring the volume of liquid, chemicals, and other things. The pipette will be more correct with all the samples, accounting for every drop of the substance being held within the device. A measuring flask is used for measuring very precisely one specific volume of liquid.

So we can conclude that cylinder, pipette, and measuring flask are the tools that are used for measuring the volume of a liquid.

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The function of the indicated elastic lamellae of the aorta is to allow the aorta to maintain blood pressure without tearing in response to receiving blood under high pressure and then to conducting blood onwards.

This elastic lamellae works as a means of barrier between the smooth muscle and the endothelium. It happens that this layer also forms the outermost part of the blood vessels. Because of this characteristic feature, they help to regulate and maintain the pressure from blood flow which flows down distally.

So therefore, it can accurately be concluded that this elastic lamellae helps in regulating the blood pressure in the vessels.

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